\documentclass[DIV=7, pagesize=auto, version=last]{scrartcl}
\addtokomafont{title}{\rmfamily}
\title{The \textsf{block} package}
\author{Chua Eng Huang}
\date{1999/07/19}
\begin{document}
\maketitle
\noindent
\textsf{block.sty} is a style file for use with the \textsf{letter} class that overwrites the \verb+\opening+ and \verb+\closing+ macros so that letters can be styled with the block letter style instead of the default style. Thus, the return address, the closing, and the signature appear flushed on the left margin.
\end{document}